What is a VPN?

A VPN, or Virtual Private Network, is a technology that creates a secure and encrypted connection over a less secure network, such as the Internet. The main function of a VPN is to ensure that your data is safe from interception and monitoring while being transmitted over the network.

By encrypting connections, a VPN provides a robust layer of security that helps protect sensitive information, such as personal details and online activities, from potential eavesdroppers and cybercriminals. This is especially important when using public Wi-Fi networks, where the risk of data being intercepted is significantly higher.

In contrast, the other options either mislabel the technology or describe irrelevant concepts. For instance, "Virtual Public Network" and "Variable Privacy Network" do not accurately reflect the purpose and function of a VPN. Additionally, "Virtual Protocol Node" does not encompass the encryption aspect or the core idea of creating a private tunnel for secure communication. Therefore, recognizing the definition and role of a Virtual Private Network in safeguarding online activities is crucial for understanding Internet security.